1, Analog Devices special weighing CPU chip, 24-bit analog-to-digital conversion, precision, error ≤0.05Kg. 2, boot automatically set to zero, automatic zero tracking, tracking range can be set to zero. 3. Put bottles weighing platform is stable, automatic identification bottle, automatically open the valve aerated. 4, dual solenoid valve control, the first fast-charge, to improve filling speed, then slow charge, improve filling accuracy. 5, when inflated to set weight automatically close the valve, and a sound and light tips. 6, the digital display of the current refillable cylinders while bottle weight, net weight and the number of customers, the data at a glance. 7, you can always see the total weight, tare weight, net weight, total amount, date, time and other information. 8, can be set up 30 stalls conventional inflated amount, the number of stalls can also be set. Substantial increase in stall speed lookup. 9, a variety of filling pattern, according to the total weight, net weight, one of three modes refillable bottle weight. A weight 10,1 + 1 button press, you can auto-calibration of electronic scales, very convenient. 11, standard RS485 interface, and the box office computer network, to facilitate the supervision and management (optional). 12, filling management software can be set according to the different needs of different permissions manager to avoid unauthorized operated as *; filling electronic scales can boot password to ensure the safety of the filling operation of electronic scales. 13, gas stations, computer management system uses a SQL database management system, a variety of data on the electronic filling scale save, statistics, query. Provides a number of features daily reports, monthly reports, filling the statistical reports, sales ticket printing. 14, with an excess of automatic protection settings, without human intervention, to ensure the safety of inflatable work. 15, the filling process, you can always stop / continue filling, the filling does not affect the accuracy of the bottle. 16, with power and data storage capabilities, to ensure safe and reliable statistical data. 17, three rows highlighted durable digital tube. Can display the customer number, weighed, set amount and other information. 18, with independent property rights, free software based on user requirements change. 19, all products according to national standards.